All three history tests navigated to the doc page but didn't wait for
SvelteKit hydration, so the toggle onclick wasn't registered yet. Also
wait for versions to load (API call) before asserting on version items
or the compare button.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Three scenarios: versions list appears after edits, diff shows changed
field, compare mode displays diff between two selected versions.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>